All categories

2 years ago

Find the value of: a) 8 9 × −3 4

Mathematics

1 answer:

german2 years ago

4 0

Step-by-step explanation:

89 multiplied by negative 34 gives a negative answer, since positive multiplied by negative is negative hence,

(89) × (-34) = -3026

You might be interested in

seagull is flying at 125 feet above sea level. A dolphin is swimming 23 feet below sea level. What is the distance in feet betwe

hjlf

Answer:

102 feet.

Step-by-step explanation:

-23ft + 125ft = 102 ft

5 0

3 years ago

Name 4 points that would form a square with the origin at is center.

zheka24 [161]

9514 1404 393

Answer:

(2, 3), (-3, 2), (-2, -3), (3, -2)

Step-by-step explanation:

You can pick any point you like, then rotate it around the origin to the four quadrants (or axes) by the transformation ...

(x, y) ⇒ (-y, x) . . . . . . . . . 90° rotation CCW

That is a rotation 90° CCW. Of course a rotation CW can do the same thing for you.

One possible square is ...

(2, 3), (-3, 2), (-2, -3), (3, -2)

4 0

2 years ago

In a right triangle ΔABC, the length of leg AC = 5 ft and the hypotenuse AB = 13 ft. Find: Chapter Reference b The length of the

Butoxors [25]

Answer:

The length of the angle bisector of angle ∠A is 6.01.

Step-by-step explanation:

It is given that length of leg AC = 5 ft and the hypotenuse AB = 13 ft.

Using pythagoras theorem

$(AB)^2=(BC)^2+(AC)^2$

$(13)^2=(BC)^2+(5)^2$

$169=(BC)^2+25$

$BC=12$

$\sin A=\frac{\text{perpendicular}}{\text{hypotenuse}}$

$\sin A=\frac{BC}{AB}$

$A=\sin ^{-1}\frac{12}{13}$

$A=67.38$

Bisector divides the angle in two equal parts, therefore,

$A'=\frac{67.38}{2} =33.69$

In triangle ACD.

$\cos A'=\frac{\text{Base}}{\text{Hypotenuse}}$

$\cos A'=\frac{AC}{AD}$

$\cos (33.69^{\circ})=\frac{5}{AD}$

$0.832=\frac{5}{AD}$

$AD=\frac{5}{0.832} =6.009\approx 6.01$

Therefore the length of the angle bisector of angle ∠A is 6.01.

4 0

3 years ago

F(x) = 4x2*<br> How do u graph this

Allushta [10]

Answer:

Step-by-step explanation:

honestly im not really

5 0

3 years ago

Find a number that is between2/9and3/11

SVETLANKA909090 [29]

$\text {Between } \dfrac{2}{9} \text { and } \dfrac{3}{11}$

Change the denominators to be the same:
$\text {Between } \dfrac{2 \times 11}{9 \times 11} \text { and } \dfrac{3 \times 9}{11 \times 9}$

$\text {Between } \dfrac{22}{99} \text { and } \dfrac{27}{99}$

$\text {Possible answers are } \dfrac{23}{99} \ , \dfrac{24}{99} \ , \dfrac{25}{99} \text { and } \dfrac{26}{99}$

3 0

3 years ago